IT

Tracker / CVE-2024-57890

CVE-2024-57890

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevent integer overflow issue In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to uverbs_request_next_ptr() which also could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)" multiplication can also overflow on 32bit systems although it's fine on 64bit systems. This patch does two things. First, I've re-arranged the condition in uverbs_request_next_ptr() so that the use controlled variable "len" is on one side of the comparison by itself without any math. Then I've modified all the callers to use size_mul() for the multiplications.

Affected products and versions

linux linux_kernel
linux linux_kernel · 2.6.15 → 5.4.289
linux linux_kernel · 5.11 → 5.15.176
linux linux_kernel · 5.16 → 6.1.124
linux linux_kernel · 5.5 → 5.10.233
linux linux_kernel · 6.2 → 6.6.70
linux linux_kernel · 6.7 → 6.12.9

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References